Results 71 to 80 of about 2,470 (216)
Ecology and Evolution, Volume 15, Issue 7, July 2025.The study found a moderate (23) pool of preferred shade tree species among cocoa farmers, with specific species favored at different cocoa production stages, which highlights the need for diversified agroforestry systems to enhance resilience and sustainability.
Michael Asigbaase +2 more
wiley +1 more source
Hypoglycemic potential of triterpenes from alstonia scholaris
, 2013 A dichloromethane extract of air-dry leaves of Alstonia scholaris (L.) R. Br. contains a mixture of cycloeucalenol (1a), cycloartanol (1b) and lupeol (1c); lupeol acetate (2); and betulin (3).
Lim, Kosta Fremmielle C. +3 more
core +1 more source
Photoactivated [3+2] Addition of 6,7--angustilobine B to Fullerene [C]
Natural Product Communications, 2012 A synthesis of a new alkaloid-fullerene conjugate ( 1 ) is reported. The reaction was carried out by photoinduced [3+2] cycloaddition of the Alstonia indole alkaloid, 6,7- seco -angustilobine B ( 2 ), to fullerene[C 60 ] ( 3 ) under aerobic conditions ...
Allan Patrick G. Macabeo +4 more
doaj +1 more source
Sociobiology, 2015 Present study was conducted to evaluate the laboratory and field preference of 24 Pakistani wood species: Azadirachta indica (Neem), Pinus roxberghii (Chir), Dalbergia sissoo (Sheesham), Populus deltoides (Popular), Albizzia lebbeck (Shirin), Abies ...
Farkhanda Manzoor Dugal +1 more
doaj +1 more source
Pest categorisation of Coccus viridis
EFSA Journal, Volume 23, Issue 7, July 2025.Abstract The EFSA Panel on Plant Health performed a pest categorisation of Coccus viridis (Hemiptera: Coccidae), the green coffee scale, for the territory of the European Union (EU), following the commodity risk assessment of Jasminum polyanthum from Uganda, in which C. viridis was identified as a pest of possible concern to the EU.
EFSA Panel on Plant Health (PLH) +27 more
wiley +1 more source
Oxidative Rearrangements of the Alkaloid Intermediate Geissoschizine
Angewandte Chemie, Volume 137, Issue 24, June 10, 2025.19E‐geissoschizine is a key precursor in the biosynthesis of monoterpene indole alkaloids such as strychnine, ibogaine, and vinblastine. Using enzymatic assays and gene silencing, three CYPs were identified from C. roseus that oxidize this compound to four alkaloid scaffolds: strychnos, sarpagan, akuammiline, and mavacurane. Mutational analysis reveals
Mohamed O. Kamileen +6 more
wiley +1 more source
Biomolecules, 2020 The current study enlists metabolites of Alstonia scholaris with bioactivities, and the most active compound, 3-(1-methylpyrrolidin-2-yl) pyridine, was selected against Macrophomina phaseolina.
Aqeel Ahmad +12 more
doaj +1 more source
The structure of the alstonia alkaloid Villalstonin
, 1965 The Alstonia alkaloid Villalstonin supplies in the isomerization with trifluoroacetic äVill amine, which is excreted in thermally Pleiocarpamin (1) and macroline. On the basis of chemical reactions, spectroscopic analyzes and comparisons were derived for
Gemenden, C. W. +5 more
core +1 more source
Metabolite profiling of the extract and antimalarial activity of the tablets derived from the cortex of alstonia spectabilis [PDF]
Malaria is a global health concern that threatens many countries. Plasmodium sp. may facilitate human transmission and is currently relatively resistant to chloroquine.
Ma'arif, Burhan +4 more
core +1 more source